======================================
| xx__-> [    9.037841][  T193] ------------[ cut here ]------------
| [    9.038131][  T193] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/193
| [    9.038421][  T193] Modules linked in: nf_defrag_ipv6
| [    9.039018][  T193] Tainted: [W]=WARN
[    9.039168][  T193] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.039377][  T193] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.039595][  T193] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.040272][  T193] RSP: 0018:ffa0000000637a80 EFLAGS: 00010286
[    9.040488][  T193] RAX: 00000000ffffffa6 RBX: ff11000004c9fc40 RCX: 1ff40000000c6f16
[    9.040738][  T193] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff11000004c9fcfc
[    9.041086][  T193] RBP: ff1100000a854000 R08: 1fe2200000993fa1 R09: ff1100000e738b80
[    9.041327][  T193] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    9.041570][  T193] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a854000
[    9.041826][  T193] FS:  00007f06b5ff4840(0000) GS:ff110000b4dc7000(0000) knlGS:0000000000000000
[    9.042110][  T193] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.042322][  T193] CR2: 0000000000479648 CR3: 000000000ca95005 CR4: 0000000000771ef0
[    9.042567][  T193] PKRU: 55555554
[    9.042807][  T193] Call Trace:
[    9.042952][  T193]  <TASK>
[    9.043074][  T193]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.043254][  T193]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.043435][  T193]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.043582][  T193]  register_netdevice (net/core/dev.c:11488)
[    9.043773][  T193]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.043989][  T193]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.044168][  T193]  register_netdev (net/core/dev.c:11552)
[    9.044427][  T193]  loopback_net_init (drivers/net/loopback.c:218)
[    9.044605][  T193]  ops_init (net/core/net_namespace.c:137)
[    9.044766][  T193]  setup_net (net/core/net_namespace.c:446)
[    9.044912][  T193]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.045100][  T193]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.045282][  T193]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.045461][  T193]  copy_net_ns (net/core/net_namespace.c:579)
[    9.045735][  T193]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.045917][  T193]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.046104][  T193]  ksys_unshare (kernel/fork.c:3243)
[    9.046283][  T193]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.046460][  T193]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.046638][  T193]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.046831][  T193]  ? __ia32_sys_open (fs/open.c:1374)
[    9.047015][  T193]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.047191][  T193]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.047366][  T193]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.047627][  T193]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.047817][  T193]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.047999][  T193]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.048210][  T193] RIP: 0033:0x7f06b62b6bcb
[    9.048392][  T193] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.049006][  T193] RSP: 002b:00007ffe9a8f9128 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.049336][  T193] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f06b62b6bcb
[    9.049575][  T193] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.050002][  T193] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    9.050243][  T193] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe9a8fb350
[    9.050483][  T193] R13: 0000000000000001 R14: 00007f06b5ff46f8 R15: 00007ffe9a8fb88c
| [    9.055501][  T193] ------------[ cut here ]------------
| [    9.055676][  T193] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/193
| [    9.056049][  T193] Modules linked in: nf_defrag_ipv6
| [    9.056543][  T193] Tainted: [W]=WARN
[    9.056685][  T193] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.056903][  T193] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.057131][  T193] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.057631][  T193] RSP: 0018:ffa0000000637918 EFLAGS: 00010286
[    9.057851][  T193] RAX: 00000000ffffffa6 RBX: ff1100000ccf63c0 RCX: 1ff40000000c6ee9
[    9.058099][  T193] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ccf647c
[    9.058334][  T193] RBP: ff1100000a3ac000 R08: 1fe220000199ec91 R09: ff1100000e738b80
[    9.058655][  T193] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    9.058901][  T193] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a3ac000
[    9.059152][  T193] FS:  00007f06b5ff4840(0000) GS:ff110000b4dc7000(0000) knlGS:0000000000000000
[    9.059422][  T193] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.059724][  T193] CR2: 0000000000479648 CR3: 000000000ca95005 CR4: 0000000000771ef0
[    9.060059][  T193] PKRU: 55555554
[    9.060200][  T193] Call Trace:
[    9.060341][  T193]  <TASK>
[    9.060545][  T193]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.060735][  T193]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.060999][  T193]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.061149][  T193]  register_netdevice (net/core/dev.c:11488)
[    9.061326][  T193]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.061616][  T193]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.061805][  T193]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[    9.062001][  T193]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[    9.062175][  T193]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[    9.062350][  T193]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[    9.062524][  T193]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[    9.062712][  T193]  ? __kmalloc_noprof (mm/slub.c:5296 mm/slub.c:5307)
[    9.062888][  T193]  ops_init (net/core/net_namespace.c:137)
[    9.063128][  T193]  setup_net (net/core/net_namespace.c:446)
[    9.063273][  T193]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.063448][  T193]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.063718][  T193]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.063895][  T193]  copy_net_ns (net/core/net_namespace.c:579)
[    9.064079][  T193]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.064258][  T193]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.064516][  T193]  ksys_unshare (kernel/fork.c:3243)
[    9.064693][  T193]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.064883][  T193]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.065066][  T193]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.065327][  T193]  ? __ia32_sys_open (fs/open.c:1374)
[    9.065505][  T193]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.065677][  T193]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.065945][  T193]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.066122][  T193]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.066297][  T193]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.066472][  T193]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.066773][  T193] RIP: 0033:0x7f06b62b6bcb
[    9.066956][  T193] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.067559][  T193] RSP: 002b:00007ffe9a8f9128 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.067808][  T193] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f06b62b6bcb
[    9.068053][  T193] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.068372][  T193] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    9.068610][  T193] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe9a8fb350
[    9.068944][  T193] R13: 0000000000000001 R14: 00007f06b5ff46f8 R15: 00007ffe9a8fb88c
| [    9.073963][  T193] ------------[ cut here ]------------
| [    9.074146][  T193] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/193
| [    9.074416][  T193] Modules linked in: nf_defrag_ipv6
| [    9.074918][  T193] Tainted: [W]=WARN
[    9.075069][  T193] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.075279][  T193] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.075494][  T193] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.076018][  T193] RSP: 0018:ffa00000006378f8 EFLAGS: 00010286
[    9.076233][  T193] RAX: 00000000ffffffa6 RBX: ff1100000c01f380 RCX: 1ff40000000c6ee5
[    9.076471][  T193] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c01f43c
[    9.076720][  T193] RBP: ff1100000a911000 R08: 1fe2200001803e89 R09: ff1100000e738b80
[    9.076959][  T193] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    9.077204][  T193] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a911000
[    9.077451][  T193] FS:  00007f06b5ff4840(0000) GS:ff110000b4dc7000(0000) knlGS:0000000000000000
[    9.077735][  T193] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.077944][  T193] CR2: 0000000000479648 CR3: 000000000ca95005 CR4: 0000000000771ef0
[    9.078190][  T193] PKRU: 55555554
[    9.078418][  T193] Call Trace:
[    9.078564][  T193]  <TASK>
[    9.078678][  T193]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.078869][  T193]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.079053][  T193]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.079287][  T193]  register_netdevice (net/core/dev.c:11488)
[    9.079468][  T193]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.079675][  T193]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.079869][  T193]  __ip_tunnel_create (net/ipv4/ip_tunnel.c:268)
[    9.080144][  T193]  ? ip_tunnel_encap_del_ops (net/ipv4/ip_tunnel.c:479 (discriminator 1))
[    9.080321][  T193]  ? net_generic (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[    9.080499][  T193]  ip_tunnel_init_net (net/ipv4/ip_tunnel.c:1147)
[    9.080677][  T193]  ? ip_tunnel_ctl (net/ipv4/ip_tunnel.c:952)
[    9.080954][  T193]  ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[    9.081144][  T193]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[    9.081323][  T193]  vti_init_net (net/ipv4/ip_vti.c:517)
[    9.081505][  T193]  ops_init (net/core/net_namespace.c:137)
[    9.081748][  T193]  setup_net (net/core/net_namespace.c:446)
[    9.081894][  T193]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.082076][  T193]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.082253][  T193]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.082515][  T193]  copy_net_ns (net/core/net_namespace.c:579)
[    9.082706][  T193]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.082889][  T193]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.083074][  T193]  ksys_unshare (kernel/fork.c:3243)
[    9.083337][  T193]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.083514][  T193]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.083704][  T193]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.083882][  T193]  ? __ia32_sys_open (fs/open.c:1374)
[    9.084155][  T193]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.084336][  T193]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.084512][  T193]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.084689][  T193]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.084963][  T193]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.085148][  T193]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.085355][  T193] RIP: 0033:0x7f06b62b6bcb
[    9.085537][  T193] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.086161][  T193] RSP: 002b:00007ffe9a8f9128 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.086491][  T193] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f06b62b6bcb
[    9.086743][  T193] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.086994][  T193] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    9.087321][  T193] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe9a8fb350
[    9.087560][  T193] R13: 0000000000000001 R14: 00007f06b5ff46f8 R15: 00007ffe9a8fb88c
| [    9.092517][  T193] ------------[ cut here ]------------
| [    9.092780][  T193] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/193
| [    9.093076][  T193] Modules linked in: nf_defrag_ipv6
| [    9.093649][  T193] Tainted: [W]=WARN
[    9.093804][  T193] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.094018][  T193] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.094324][  T193] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.094930][  T193] RSP: 0018:ffa0000000637a78 EFLAGS: 00010286
[    9.095152][  T193] RAX: 00000000ffffffa6 RBX: ff1100000c01e040 RCX: 1ff40000000c6f15
[    9.095392][  T193] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000c01e0fc
[    9.095726][  T193] RBP: ff1100000e8c4000 R08: 1fe2200001803c21 R09: ff1100000e738b80
[    9.095964][  T193] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    9.096208][  T193] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e8c4000
[    9.096535][  T193] FS:  00007f06b5ff4840(0000) GS:ff110000b4dc7000(0000) knlGS:0000000000000000
[    9.096823][  T193] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.097126][  T193] CR2: 0000000000479648 CR3: 000000000ca95005 CR4: 0000000000771ef0
[    9.097367][  T193] PKRU: 55555554
[    9.097508][  T193] Call Trace:
[    9.097650][  T193]  <TASK>
[    9.097775][  T193]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.098045][  T193]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.098225][  T193]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.098373][  T193]  register_netdevice (net/core/dev.c:11488)
[    9.098551][  T193]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.098852][  T193]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.099040][  T193]  register_netdev (net/core/dev.c:11552)
[    9.099217][  T193]  vti6_init_net (net/ipv6/ip6_vti.c:1167)
[    9.099395][  T193]  ops_init (net/core/net_namespace.c:137)
[    9.099624][  T193]  setup_net (net/core/net_namespace.c:446)
[    9.099780][  T193]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.099954][  T193]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.100138][  T193]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.100400][  T193]  copy_net_ns (net/core/net_namespace.c:579)
[    9.100578][  T193]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.100769][  T193]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.100945][  T193]  ksys_unshare (kernel/fork.c:3243)
[    9.101208][  T193]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.101384][  T193]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.101560][  T193]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.101745][  T193]  ? __ia32_sys_open (fs/open.c:1374)
[    9.102014][  T193]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.102188][  T193]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.102362][  T193]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.102537][  T193]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.102812][  T193]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.102997][  T193]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.103204][  T193] RIP: 0033:0x7f06b62b6bcb
[    9.103384][  T193] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.103998][  T193] RSP: 002b:00007ffe9a8f9128 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.104326][  T193] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f06b62b6bcb
[    9.104563][  T193] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.104814][  T193] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    9.105149][  T193] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe9a8fb350
[    9.105387][  T193] R13: 0000000000000001 R14: 00007f06b5ff46f8 R15: 00007ffe9a8fb88c
| [    9.120194][  T193] ------------[ cut here ]------------
| [    9.120377][  T193] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/193
| [    9.120646][  T193] Modules linked in: nf_defrag_ipv6
| [    9.121239][  T193] Tainted: [W]=WARN
[    9.121382][  T193] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.121587][  T193] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.121810][  T193] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.122315][  T193] RSP: 0018:ffa0000000637a68 EFLAGS: 00010286
[    9.122524][  T193] RAX: 00000000ffffffa6 RBX: ff110000095f4200 RCX: 1ff40000000c6f13
[    9.122773][  T193] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000095f42bc
[    9.123015][  T193] RBP: ff11000001f59000 R08: 1fe22000012be859 R09: ff1100000e738b80
[    9.123255][  T193] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    9.123491][  T193] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000001f59000
[    9.123743][  T193] FS:  00007f06b5ff4840(0000) GS:ff110000b4dc7000(0000) knlGS:0000000000000000
[    9.124026][  T193] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.124236][  T193] CR2: 0000000000479648 CR3: 000000000ca95005 CR4: 0000000000771ef0
[    9.124477][  T193] PKRU: 55555554
[    9.124622][  T193] Call Trace:
[    9.124777][  T193]  <TASK>
[    9.124892][  T193]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.125080][  T193]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.125257][  T193]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.125402][  T193]  register_netdevice (net/core/dev.c:11488)
[    9.125584][  T193]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.125807][  T193]  register_netdev (net/core/dev.c:11552)
[    9.125991][  T193]  sit_init_net (net/ipv6/sit.c:1860)
[    9.126169][  T193]  ops_init (net/core/net_namespace.c:137)
[    9.126314][  T193]  setup_net (net/core/net_namespace.c:446)
[    9.126466][  T193]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.126641][  T193]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.126854][  T193]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.127038][  T193]  copy_net_ns (net/core/net_namespace.c:579)
[    9.127218][  T193]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.127398][  T193]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.127574][  T193]  ksys_unshare (kernel/fork.c:3243)
[    9.127763][  T193]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.127938][  T193]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.128124][  T193]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.128302][  T193]  ? __ia32_sys_open (fs/open.c:1374)
[    9.128479][  T193]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.128655][  T193]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.128840][  T193]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.129024][  T193]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.129201][  T193]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.129377][  T193]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.129588][  T193] RIP: 0033:0x7f06b62b6bcb
[    9.129777][  T193] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.130279][  T193] RSP: 002b:00007ffe9a8f9128 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.130518][  T193] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f06b62b6bcb
[    9.130766][  T193] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.131008][  T193] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    9.131243][  T193] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe9a8fb350
[    9.131478][  T193] R13: 0000000000000001 R14: 00007f06b5ff46f8 R15: 00007ffe9a8fb88c
| [    9.141575][  T193] ------------[ cut here ]------------
| [    9.141763][  T193] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/193
| [    9.142047][  T193] Modules linked in: nf_defrag_ipv6
| [    9.142540][  T193] Tainted: [W]=WARN
[    9.142683][  T193] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.142904][  T193] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.143125][  T193] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.143633][  T193] RSP: 0018:ffa0000000637a78 EFLAGS: 00010286
[    9.143860][  T193] RAX: 00000000ffffffa6 RBX: ff1100000b7e2ac0 RCX: 1ff40000000c6f15
[    9.144109][  T193] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000b7e2b7c
[    9.144354][  T193] RBP: ff1100000e801000 R08: 1fe22000016fc571 R09: ff1100000e738b80
[    9.144593][  T193] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    9.144843][  T193] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000e801000
[    9.145091][  T193] FS:  00007f06b5ff4840(0000) GS:ff110000b4dc7000(0000) knlGS:0000000000000000
[    9.145368][  T193] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.145578][  T193] CR2: 0000000000479648 CR3: 000000000ca95005 CR4: 0000000000771ef0
[    9.145832][  T193] PKRU: 55555554
[    9.145985][  T193] Call Trace:
[    9.146130][  T193]  <TASK>
[    9.146244][  T193]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.146423][  T193]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.146602][  T193]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.146761][  T193]  register_netdevice (net/core/dev.c:11488)
[    9.146939][  T193]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.147154][  T193]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.147334][  T193]  register_netdev (net/core/dev.c:11552)
[    9.147511][  T193]  ip6_tnl_init_net (net/ipv6/ip6_tunnel.c:2346)
[    9.147704][  T193]  ops_init (net/core/net_namespace.c:137)
[    9.147853][  T193]  setup_net (net/core/net_namespace.c:446)
[    9.148005][  T193]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.148182][  T193]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.148360][  T193]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.148539][  T193]  copy_net_ns (net/core/net_namespace.c:579)
[    9.148732][  T193]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.148912][  T193]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.149104][  T193]  ksys_unshare (kernel/fork.c:3243)
[    9.149284][  T193]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.149460][  T193]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.149637][  T193]  ? __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[    9.149828][  T193]  ? __ia32_sys_open (fs/open.c:1374)
[    9.150014][  T193]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.150193][  T193]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.150372][  T193]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.150549][  T193]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.150739][  T193]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.150918][  T193]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.151137][  T193] RIP: 0033:0x7f06b62b6bcb
[    9.151319][  T193] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.151841][  T193] RSP: 002b:00007ffe9a8f9128 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.152089][  T193] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f06b62b6bcb
[    9.152330][  T193] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.152568][  T193] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    9.152821][  T193] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffe9a8fb350
[    9.153069][  T193] R13: 0000000000000001 R14: 00007f06b5ff46f8 R15: 00007ffe9a8fb88c
| [    9.189421][  T194] ------------[ cut here ]------------
| [    9.189605][  T194] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/194
| [    9.190412][  T194] Modules linked in: nf_defrag_ipv6
| [    9.191036][  T194] Tainted: [W]=WARN
[    9.191235][  T194] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.191496][  T194] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.191778][  T194] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.192340][  T194] RSP: 0018:ffa0000000627020 EFLAGS: 00010286
[    9.192602][  T194] RAX: 00000000ffffffa6 RBX: ff1100000ccf6900 RCX: 1ff40000000c4dca
[    9.192906][  T194] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ccf69bc
[    9.193206][  T194] RBP: ff1100000a854000 R08: 1fe220000199ed39 R09: ff1100000e73ae58
[    9.193497][  T194] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[    9.193797][  T194] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[    9.194100][  T194] FS:  00007fdf67a35840(0000) GS:ff110000b4dc7000(0000) knlGS:0000000000000000
[    9.194424][  T194] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.194687][  T194] CR2: 000000003b31d988 CR3: 000000000e4c9001 CR4: 0000000000771ef0
[    9.195056][  T194] PKRU: 55555554
[    9.195252][  T194] Call Trace:
[    9.195450][  T194]  <TASK>
[    9.195618][  T194]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.195861][  T194]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.196065][  T194]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.196296][  T194]  __dev_notify_flags (net/core/dev.c:9787)
[    9.196528][  T194]  ? netif_change_name (net/core/dev.c:1495)
[    9.196768][  T194]  ? __dev_change_flags (net/core/dev.c:9752)
[    9.197006][  T194]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[    9.197234][  T194]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.197475][  T194]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[    9.197717][  T194]  netif_change_flags (net/core/dev.c:9820)
[    9.197951][  T194]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[    9.198185][  T194]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    9.198418][  T194]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.198669][  T194]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.198942][  T194]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.199193][  T194]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.199420][  T194]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.199651][  T194]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.199894][  T194]  ? __kernel_text_address (kernel/extable.c:79)
[    9.200161][  T194]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.200340][  T194]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.200515][  T194]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.200802][  T194]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.200990][  T194]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.201168][  T194]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.201343][  T194]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.201517][  T194]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.201706][  T194]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[    9.201879][  T194]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.202064][  T194]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.202244][  T194]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.202421][  T194]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.202601][  T194]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.202793][  T194]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.202965][  T194]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.203148][  T194]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.203321][  T194]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.203495][  T194]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.203673][  T194]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.203864][  T194]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.204052][  T194]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.204230][  T194]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.204409][  T194]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.204588][  T194]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.204777][  T194]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.204956][  T194]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.205141][  T194]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.205324][  T194]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.205501][  T194]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.205682][  T194]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.205876][  T194]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.206060][  T194]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.206243][  T194]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.206421][  T194]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.206602][  T194]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.206797][  T194]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.206976][  T194]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.207163][  T194]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.207343][  T194]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.207524][  T194]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.207719][  T194]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.207899][  T194]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.208088][  T194]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.208298][  T194]  ? move_addr_to_kernel (net/socket.c:258)
[    9.208478][  T194]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.208657][  T194]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.208846][  T194]  ___sys_sendmsg (net/socket.c:2752)
[    9.209033][  T194]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.209248][  T194]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.209441][  T194]  __sys_sendmsg (net/socket.c:2784)
[    9.209623][  T194]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.209811][  T194]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.210029][  T194]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    9.210209][  T194]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.210390][  T194]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.210571][  T194]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.210764][  T194]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.210946][  T194]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.211160][  T194] RIP: 0033:0x7fdf67c6f08e
[    9.211345][  T194] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.211878][  T194] RSP: 002b:00007ffde7deeb60 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.212134][  T194] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fdf67c6f08e
[    9.212377][  T194] RDX: 0000000000000000 RSI: 00007ffde7deec10 RDI: 0000000000000005
[    9.212622][  T194] RBP: 00007ffde7deeb70 R08: 0000000000000000 R09: 0000000000000000
[    9.212875][  T194] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10ebcb
[    9.213131][  T194] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffde7def2e0
| [   26.534873][   T69] ------------[ cut here ]------------
| [   26.535080][   T69] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/69
| [   26.535333][   T69] Modules linked in: xt_conntrack nf_conntrack nf_defrag_ipv4 nft_compat nf_tables nf_defrag_ipv6
| [   26.535901][   T69] Tainted: [W]=WARN
[   26.535995][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.536156][   T69] Workqueue: netns cleanup_net
[   26.536351][   T69] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   26.536512][   T69] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   26.536953][   T69] RSP: 0018:ffa00000004a7938 EFLAGS: 00010286
[   26.537113][   T69] RAX: 00000000ffffffa6 RBX: ff1100000ab22580 RCX: 1ff4000000094eed
[   26.537292][   T69] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ab2263c
[   26.537472][   T69] RBP: ff1100000e801000 R08: 1fe22000015644c9 R09: ff11000008e6d1d0
[   26.537651][   T69] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   26.537838][   T69] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   26.538070][   T69] FS:  0000000000000000(0000) GS:ff110000b4cc7000(0000) knlGS:0000000000000000
[   26.538281][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.538438][   T69] CR2: 000056081c03b580 CR3: 000000006394d001 CR4: 0000000000771ef0
[   26.538622][   T69] PKRU: 55555554
[   26.538721][   T69] Call Trace:
[   26.538811][   T69]  <TASK>
[   26.538876][   T69]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   26.539039][   T69]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   26.539192][   T69]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   26.539315][   T69]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   26.539436][   T69]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   26.539556][   T69]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   26.539679][   T69]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   26.539808][   T69]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   26.539932][   T69]  ? netns_install (./include/linux/ns_common.h:26)
[   26.540055][   T69]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   26.540178][   T69]  cleanup_net (net/core/net_namespace.c:702)
[   26.540300][   T69]  ? net_passive_dec (./include/linux/llist.h:241)
[   26.540431][   T69]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   26.540553][   T69]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   26.540671][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   26.540798][   T69]  process_one_work (kernel/workqueue.c:3314)
[   26.540926][   T69]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   26.541049][   T69]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   26.541174][   T69]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   26.541296][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   26.541418][   T69]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   26.541540][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   26.541660][   T69]  kthread (kernel/kthread.c:436)
[   26.541757][   T69]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.541906][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[   26.542030][   T69]  ret_from_fork (arch/x86/kernel/process.c:158)
[   26.542158][   T69]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   26.542307][   T69]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   26.542426][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[   26.542547][   T69]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   26.545044][   T69] ------------[ cut here ]------------
| [   26.545177][   T69] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/69
| [   26.545416][   T69] Modules linked in: xt_conntrack nf_conntrack nf_defrag_ipv4 nft_compat nf_tables nf_defrag_ipv6
| [   26.545945][   T69] Tainted: [W]=WARN
[   26.546040][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.546191][   T69] Workqueue: netns cleanup_net
[   26.546318][   T69] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   26.546474][   T69] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   26.546913][   T69] RSP: 0018:ffa00000004a7938 EFLAGS: 00010286
[   26.547073][   T69] RAX: 00000000ffffffa6 RBX: ff1100000ab22c80 RCX: 1ff4000000094eed
[   26.547254][   T69] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ab22d3c
[   26.547436][   T69] RBP: ff11000001f59000 R08: 1fe22000015645a9 R09: ff11000008e6d1d0
[   26.547620][   T69] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   26.547808][   T69] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   26.547990][   T69] FS:  0000000000000000(0000) GS:ff110000b4cc7000(0000) knlGS:0000000000000000
[   26.548206][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.548440][   T69] CR2: 000056081c03b580 CR3: 000000006394d001 CR4: 0000000000771ef0
[   26.548699][   T69] PKRU: 55555554
[   26.548790][   T69] Call Trace:
[   26.548881][   T69]  <TASK>
[   26.548944][   T69]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   26.549171][   T69]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   26.549320][   T69]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   26.549444][   T69]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   26.549635][   T69]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   26.549759][   T69]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   26.549882][   T69]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   26.550006][   T69]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   26.550203][   T69]  ? netns_install (./include/linux/ns_common.h:26)
[   26.550320][   T69]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   26.550444][   T69]  cleanup_net (net/core/net_namespace.c:702)
[   26.550567][   T69]  ? net_passive_dec (./include/linux/llist.h:241)
[   26.550762][   T69]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   26.550884][   T69]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   26.551003][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   26.551131][   T69]  process_one_work (kernel/workqueue.c:3314)
[   26.551324][   T69]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   26.551449][   T69]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   26.551576][   T69]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   26.551703][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   26.551897][   T69]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   26.552018][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   26.552140][   T69]  kthread (kernel/kthread.c:436)
[   26.552227][   T69]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.552440][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[   26.552555][   T69]  ret_from_fork (arch/x86/kernel/process.c:158)
[   26.552670][   T69]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   26.552818][   T69]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   26.553005][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[   26.553124][   T69]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   26.557298][   T69] ------------[ cut here ]------------
| [   26.557439][   T69] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/69
| [   26.557669][   T69] Modules linked in: xt_conntrack nf_conntrack nf_defrag_ipv4 nft_compat nf_tables nf_defrag_ipv6
| [   26.558238][   T69] Tainted: [W]=WARN
[   26.558324][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.558469][   T69] Workqueue: netns cleanup_net
[   26.558588][   T69] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   26.558747][   T69] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   26.559169][   T69] RSP: 0018:ffa00000004a7938 EFLAGS: 00010286
[   26.559315][   T69] RAX: 00000000ffffffa6 RBX: ff1100000ab231c0 RCX: 1ff4000000094eed
[   26.559487][   T69] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ab2327c
[   26.559657][   T69] RBP: ff1100000e8c4000 R08: 1fe2200001564651 R09: ff11000008e6d1d0
[   26.559838][   T69] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   26.560013][   T69] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   26.560190][   T69] FS:  0000000000000000(0000) GS:ff110000b4d47000(0000) knlGS:0000000000000000
[   26.560392][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.560537][   T69] CR2: 00007f1dc94392a0 CR3: 000000000b0d3006 CR4: 0000000000771ef0
[   26.560769][   T69] PKRU: 55555554
[   26.560855][   T69] Call Trace:
[   26.560940][   T69]  <TASK>
[   26.561001][   T69]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   26.561151][   T69]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   26.561341][   T69]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   26.561457][   T69]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   26.561577][   T69]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   26.561738][   T69]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   26.561854][   T69]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   26.561970][   T69]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   26.562092][   T69]  ? netns_install (./include/linux/ns_common.h:26)
[   26.562211][   T69]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   26.562329][   T69]  cleanup_net (net/core/net_namespace.c:702)
[   26.562444][   T69]  ? net_passive_dec (./include/linux/llist.h:241)
[   26.562557][   T69]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   26.562672][   T69]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   26.562825][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   26.562949][   T69]  process_one_work (kernel/workqueue.c:3314)
[   26.563078][   T69]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   26.563198][   T69]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   26.563323][   T69]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   26.563443][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   26.563560][   T69]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   26.563682][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   26.563807][   T69]  kthread (kernel/kthread.c:436)
[   26.563898][   T69]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.564053][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[   26.564172][   T69]  ret_from_fork (arch/x86/kernel/process.c:158)
[   26.564287][   T69]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   26.564429][   T69]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   26.564544][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[   26.564665][   T69]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   26.566840][   T69] ------------[ cut here ]------------
| [   26.566958][   T69] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/69
| [   26.567185][   T69] Modules linked in: xt_conntrack nf_conntrack nf_defrag_ipv4 nft_compat nf_tables nf_defrag_ipv6
| [   26.567673][   T69] Tainted: [W]=WARN
[   26.567765][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.567908][   T69] Workqueue: netns cleanup_net
[   26.568036][   T69] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   26.568195][   T69] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   26.568616][   T69] RSP: 0018:ffa00000004a7938 EFLAGS: 00010286
[   26.568899][   T69] RAX: 00000000ffffffa6 RBX: ff1100000ab23540 RCX: 1ff4000000094eed
[   26.569073][   T69] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ab235fc
[   26.569243][   T69] RBP: ff1100000a911000 R08: 1fe22000015646c1 R09: ff11000008e6d1d0
[   26.569416][   T69] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   26.569590][   T69] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   26.569765][   T69] FS:  0000000000000000(0000) GS:ff110000b4d47000(0000) knlGS:0000000000000000
[   26.569965][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.570111][   T69] CR2: 00007f1dc94392a0 CR3: 000000006394d004 CR4: 0000000000771ef0
[   26.570282][   T69] PKRU: 55555554
[   26.570412][   T69] Call Trace:
[   26.570512][   T69]  <TASK>
[   26.570573][   T69]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   26.570734][   T69]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   26.570875][   T69]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   26.570990][   T69]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   26.571114][   T69]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   26.571231][   T69]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   26.571344][   T69]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   26.571460][   T69]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   26.571576][   T69]  ? netns_install (./include/linux/ns_common.h:26)
[   26.571690][   T69]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   26.571815][   T69]  cleanup_net (net/core/net_namespace.c:702)
[   26.571962][   T69]  ? net_passive_dec (./include/linux/llist.h:241)
[   26.572081][   T69]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   26.572197][   T69]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   26.572310][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   26.572425][   T69]  process_one_work (kernel/workqueue.c:3314)
[   26.572549][   T69]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   26.572663][   T69]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   26.572787][   T69]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   26.572902][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   26.573017][   T69]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   26.573137][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   26.573252][   T69]  kthread (kernel/kthread.c:436)
[   26.573338][   T69]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.573481][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[   26.573596][   T69]  ret_from_fork (arch/x86/kernel/process.c:158)
[   26.573720][   T69]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   26.573936][   T69]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   26.574053][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[   26.574242][   T69]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   26.576632][   T69] ------------[ cut here ]------------
| [   26.577308][   T69] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/69
| [   26.577536][   T69] Modules linked in: xt_conntrack nf_conntrack nf_defrag_ipv4 nft_compat nf_tables nf_defrag_ipv6
| [   26.578282][   T69] Tainted: [W]=WARN
[   26.578369][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.578511][   T69] Workqueue: netns cleanup_net
[   26.578629][   T69] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   26.578828][   T69] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   26.579342][   T69] RSP: 0018:ffa00000004a7938 EFLAGS: 00010286
[   26.579502][   T69] RAX: 00000000ffffffa6 RBX: ff1100000ab238c0 RCX: 1ff4000000094eed
[   26.579675][   T69] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ab2397c
[   26.579897][   T69] RBP: ff1100000a3ac000 R08: 1fe2200001564731 R09: ff11000008e6d1d0
[   26.580123][   T69] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   26.580362][   T69] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   26.580535][   T69] FS:  0000000000000000(0000) GS:ff110000b4d47000(0000) knlGS:0000000000000000
[   26.580779][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.580951][   T69] CR2: 00007f1dc94392a0 CR3: 000000006394d004 CR4: 0000000000771ef0
[   26.581129][   T69] PKRU: 55555554
[   26.581214][   T69] Call Trace:
[   26.581298][   T69]  <TASK>
[   26.581358][   T69]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   26.581505][   T69]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   26.581645][   T69]  ? queue_rcu_work (./include/linux/rcupdate.h:125 kernel/workqueue.c:2686)
[   26.581805][   T69]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   26.581924][   T69]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   26.582043][   T69]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   26.582158][   T69]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   26.582273][   T69]  ops_undo_list (net/core/net_namespace.c:187 net/core/net_namespace.c:248)
[   26.582388][   T69]  ? netns_install (./include/linux/ns_common.h:26)
[   26.582507][   T69]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   26.582622][   T69]  cleanup_net (net/core/net_namespace.c:702)
[   26.582785][   T69]  ? net_passive_dec (./include/linux/llist.h:241)
[   26.582901][   T69]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   26.583020][   T69]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   26.583138][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   26.583258][   T69]  process_one_work (kernel/workqueue.c:3314)
[   26.583375][   T69]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   26.583488][   T69]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   26.583606][   T69]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   26.583770][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   26.583887][   T69]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   26.584004][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   26.584121][   T69]  kthread (kernel/kthread.c:436)
[   26.584207][   T69]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.584419][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[   26.584532][   T69]  ret_from_fork (arch/x86/kernel/process.c:158)
[   26.584647][   T69]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   26.584836][   T69]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   26.584953][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[   26.585074][   T69]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   26.611257][   T69] ------------[ cut here ]------------
| [   26.611398][   T69] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/69
| [   26.611647][   T69] Modules linked in: xt_conntrack nf_conntrack nf_defrag_ipv4 nft_compat nf_tables nf_defrag_ipv6
| [   26.612189][   T69] Tainted: [W]=WARN
[   26.612281][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.612435][   T69] Workqueue: netns cleanup_net
[   26.612561][   T69] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   26.612726][   T69] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   26.613162][   T69] RSP: 0018:ffa00000004a7748 EFLAGS: 00010286
[   26.613317][   T69] RAX: 00000000ffffffa6 RBX: ff1100000ab23a80 RCX: 1ff4000000094eaf
[   26.613498][   T69] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff1100000ab23b3c
[   26.613678][   T69] RBP: ff1100000a854000 R08: 1fe2200001564769 R09: ff11000008e6d1d0
[   26.613868][   T69] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   26.614055][   T69] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004a77e0
[   26.614237][   T69] FS:  0000000000000000(0000) GS:ff110000b4e47000(0000) knlGS:0000000000000000
[   26.614448][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.614601][   T69] CR2: 00007f693e505f98 CR3: 000000006394d001 CR4: 0000000000771ef0
[   26.614789][   T69] PKRU: 55555554
[   26.614880][   T69] Call Trace:
[   26.614973][   T69]  <TASK>
[   26.615039][   T69]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   26.615164][   T69]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   26.615256][   T69]  netif_close_many (net/core/dev.c:1804)
[   26.615379][   T69]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   26.615500][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   26.615619][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   26.615750][   T69]  ? __dev_close_many (net/core/dev.c:1781)
[   26.615870][   T69]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   26.616023][   T69]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   26.616179][   T69]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   26.616301][   T69]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   26.616421][   T69]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   26.616543][   T69]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   26.616702][   T69]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   26.616827][   T69]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   26.616958][   T69]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   26.617085][   T69]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   26.617206][   T69]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   26.617330][   T69]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   26.617453][   T69]  ? netns_install (./include/linux/ns_common.h:26)
[   26.617573][   T69]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   26.617701][   T69]  cleanup_net (net/core/net_namespace.c:702)
[   26.617824][   T69]  ? net_passive_dec (./include/linux/llist.h:241)
[   26.617945][   T69]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   26.618072][   T69]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   26.618198][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   26.618327][   T69]  process_one_work (kernel/workqueue.c:3314)
[   26.618451][   T69]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   26.618570][   T69]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   26.618702][   T69]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   26.618826][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   26.618947][   T69]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   26.619075][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   26.619201][   T69]  kthread (kernel/kthread.c:436)
[   26.619294][   T69]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.619443][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[   26.619564][   T69]  ret_from_fork (arch/x86/kernel/process.c:158)
[   26.619687][   T69]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   26.619843][   T69]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   26.619964][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[   26.620093][   T69]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   26.622808][   T69] ------------[ cut here ]------------
| [   26.622927][   T69] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 1/69
| [   26.623159][   T69] Modules linked in: xt_conntrack nf_conntrack nf_defrag_ipv4 nft_compat nf_tables nf_defrag_ipv6
| [   26.623710][   T69] Tainted: [W]=WARN
[   26.623798][   T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.623945][   T69] Workqueue: netns cleanup_net
[   26.624073][   T69] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   26.624224][   T69] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 e8 b2 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b324
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 e8 b2 f0 ff       	call   0xfffffffffff0b2fa
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   26.624646][   T69] RSP: 0018:ffa00000004a7878 EFLAGS: 00010286
[   26.624800][   T69] RAX: 00000000ffffffa6 RBX: ff11000011375700 RCX: 1ff4000000094ed5
[   26.624982][   T69] RDX: 0000000000000007 RSI: 0000000000000000 RDI: ff110000113757bc
[   26.625159][   T69] RBP: ff1100000a854000 R08: 1fe220000226eaf9 R09: ff11000008e6d1d0
[   26.625336][   T69] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   26.625512][   T69] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   26.625688][   T69] FS:  0000000000000000(0000) GS:ff110000b4e47000(0000) knlGS:0000000000000000
[   26.626426][   T69] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.626574][   T69] CR2: 00007f693e505f98 CR3: 000000006394d001 CR4: 0000000000771ef0
[   26.626822][   T69] PKRU: 55555554
[   26.626964][   T69] Call Trace:
[   26.627057][   T69]  <TASK>
[   26.627120][   T69]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   26.627268][   T69]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   26.627416][   T69]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   26.627536][   T69]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   26.627655][   T69]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   26.627842][   T69]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   26.627959][   T69]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   26.628081][   T69]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   26.628200][   T69]  ? netns_install (./include/linux/ns_common.h:26)
[   26.628317][   T69]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   26.628436][   T69]  cleanup_net (net/core/net_namespace.c:702)
[   26.628554][   T69]  ? net_passive_dec (./include/linux/llist.h:241)
[   26.628669][   T69]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   26.628833][   T69]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   26.628954][   T69]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   26.629075][   T69]  process_one_work (kernel/workqueue.c:3314)
[   26.629195][   T69]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   26.629312][   T69]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   26.629431][   T69]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   26.629559][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   26.629675][   T69]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   26.629840][   T69]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   26.629957][   T69]  kthread (kernel/kthread.c:436)
[   26.630052][   T69]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.630196][   T69]  ? kthread_affine_node (kernel/kthread.c:378)
[   26.630313][   T69]  ret_from_fork (arch/x86/kernel/process.c:158)
[   26.630431][   T69]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   26.630581][   T69]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   26.630717][   T69]  ? kthread_affine_node (kernel/kthread.c:378)


Finger prints:
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:register_netdev:sit_init_net
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:register_netdev:loopback_net_init
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:netif_close_many:unregister_netdevice_many_notify:default_device_exit_batch
rtmsg_ifinfo_build_skb:unregister_netdevice_many_notify:ops_undo_list:cleanup_net:process_one_work
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:__dev_notify_flags:netif_change_flags:rtnl_newlink
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:register_netdev:ip6_tnl_init_net
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:register_netdev:vti6_init_net
rtmsg_ifinfo_build_skb:unregister_netdevice_many_notify:default_device_exit_batch:ops_undo_list:cleanup_net
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:__ip_tunnel_create:ip_tunnel_init_net